perplexus.info :: Just Math : Number Count Conclusion

Number Count Conclusion (Posted on 2015-04-15)

sod(N) denotes the sum of the base ten digits of N.

N is a 5-digit base ten positive integer divisible by 15, and sod(N) =15

Determine the total count of the values of N for which this is possible.

Submitted by K Sengupta

Rating: 4.0000 (2 votes)

Solution: (Hide)

The required total count of the values is 738
For an explanation, refer to:
(i) The computer assisted solution submitted by Charlie in this location.
(ii)The analytic solution submitted by Jer in this location.
(iii) The analytic solution submitted by Steve Herman in this location.

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
re: Analytics can get you there	Steve Herman	2015-04-16 12:57:46
Analytics can get you there	Jer	2015-04-16 09:53:17
Analytics only get you so far	Steve Herman	2015-04-15 19:05:17
computer solution	Charlie	2015-04-15 16:25:15

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